Oil burner



March 4, l 930.

B. J. TlDY OIL BURNER Filed April 19; 1928 y I, In l y Patented Mar. 4, 1930 UNITED sTA TES Lua-401 PATENT GFFIC BARNARD J. TIDY, OF PORT ALICE, BRITISH COLUMBIA, CANADA 011. BURNER Application led April 19,

- of the aforesaid mixture which passes to the rflame jet is under complete regulation and control, without alteration of the proportions, and also whereby an easily effected andV yclosely adjusted control of the width and lo'shape of the flame is obtained.V

These objects are attained by means of the device illustrated in the accompanying drawings, which form part ofthis specification, and in which:

Fig. 1 is a central longitudinal section parts. Fig. 2 is a cross section on the line A-B v of Fig. 1. Fig. 3 is a side view of the internal tubular member shown in Fig. 2.

Figa is an end viewl of the oil disc'orl annular member provided for the final subdivision of the oil fuel intoy fine stream threads.

YF ig. 5 is a side view of the said oil disc showing the 'spiral nature of the oil ways or passages.y

ln these views 13 represents the connection Y 3o head which is provided with branch openings ber 13 with the central tubular member 8.

tubular tip or steam nozzle 9 which is provided with a series of small `radial apertures 10 through which the steam escapes into the f atomizing chamber19.. 40 This central tube 8 has formed upon its outer periphery a plurality of axial grooves 16 leaving an equal number of radial ridges 31. The tube is pressed into a larger concenthe connection 13 by the union 15, vand Fig. 2 shows a cross section of the combination, the grooves 16 forming a plurality of axial passages between the tubes 8 and 29.

The fuel oil is admitted through the branch pipe 11, and is diverted along the passage 12 4ternal spiral grooves 18 thereon thus form- 7 and 11 for the supply of steam and fuel oil respectively. The passage 7 is in direct communication through the centre of the cham- 1928. Serial No. 271,295.

into the annular space 32 between the tubular members 8 and 13, and passes towards the "vaporizing chamber 19. by way of the axial passages 16'. During this passage it is preheated by its contact with the tube8, which is kept hot by the ysteam current within, and

' nally arrives at the vaporizing chamber 19 by issuing through apertures' formed in the annular disc member 17.

This member, subsequently referred to as the oil disc,is pressed on to the tubular tip i9 before the latter is secured into the end of the central tube 8; This oil disc is'illus- -trate'd in end View in Fig. 4, and in side view -in Fig. 5, yin-its correct position upon the showing the relation of all the principal inner end of the tubular nozzle 9. The oil disc is provided with a plurality of spirally members 9 and 8, so that thefuel oil can pass from the annular space between 8 and 75 29 into thevaporizing chamber 19 by spiral passages formed by the grooves 30.

The external periphery of the oil disc fits snugly'into the vinside of the tube 29, the eX- ing a similar set of passages by which the fuel oil can also issues into the vaporizing chamber 19. The oil thus arrives in a pren -heated and finely divided state in the vapor- 35 Into the far end of the tube 8 is secured a* izing chamber 19, passing over 'and intimately mixingwith the steam issuing from the apertures 10 in the steam nozzle' 9.

The mixture-of oil and steam thence passes forward into the yburner tip 21 through the open volume valve 20, the amount of open- 'ing being regulated bythehand wheel 28 through the valve stem 27, the swivel con- -nection 26 and the valve rod 25.

tric tubular member 29 which is secured to .f

AThe valve 2O Vis centrally disposedwithin -the burner and its motion is axial, being constrained by guides 33 adjacent to its seat in :the endof thevaporizingchamber 19 and 22 in the end of the burner tip Where it is l ignited. The slit 22 extends across the end oi the burner tip and some distance down the sides7 so that a lateral spreading action of the liame is obtained. This spreading action is controlled by the tubular member 23 which can be adjusted axially to cover up the side portion of the slit 22 as required and is secured in anyY desired position axially by means o'f the lock-nut 24.

The burner tip 21 is removably secured t0 the end of the tubular member 14 forming the outside of the vaporizing chamber 19,1md can be easily replaced by another tip with a diierent Width or arrangement of slit Q2' in order to suit any Variation in the heating requirements of the burner.

It will thus be seen that the amount of ignitible mixturey issuing from the burner is strictly under control by means of the Volv ume valve 2O Without it being necessary to alter the proportions of the mixture by regulating the area of the steam or fuel passages.

Having now particularly described my invention, what I claim and desire to be protected in by Letters Patent,v is: i Y

An oil burner comprising, a connection i head orv body member, pipebranches on said -body member `adapted to receive pipe con- "respectively, a tubular casing secured at one sections for `the supply of fuel and steam end to said body member, a conical aperture .in the outer extremity ofvsaid casing, arod through said casing with its axis coincident with thator1 the casing and having a coned extremity adapted to engage the said conical 'aperturein the end of the casing,, a hand wheel on thevother extremity of said rod, an

. interior tubular member secured to said body f branclnf longitudinal utings in the outer'pemember communicating with said steam. pipe riphery of said interior member whereby its heating surface is augmented and a plurality of channels is provided for the passage of the fuel oil, a duct connecting the said Ychannels With the said body member and the said fuel pipe branch.` an -oildisc forming al perforated annular extremity to the chamber i formed by the said casing and the said interior member, said disc having cuits-outer and inner peripheries helical grooves through y whichV the heated fuel oil passes into the atomizring; chamber adj ace'ntlthe` outer-extrem- -ity ofthe said casing, a portion of' the said interior member' projecting beyond the said oil disc and having perforationsin' itsv circular Wall whereby steam issuing therethrough from the said interior central member unites With the heated fuel oil issuing from the said helical groovesthereby ycompleting the atomizing process. e

In testimony whereof I aiix my signature` BARNABD ,L 'TIDY.

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